In this article, an adaptive normalized least mean fourth (NLMF) control scheme is employed to generate the anti-harmonic currents of photovoltaic (PV) integrated with grid system for harmonic elimination and power factor (PF) correction (PFC). In addition, a fuzzy tuned PID-based adaptive dc voltage regulator is integrated in the proposed scheme to regulate the reference voltage of the dc bus. The proposed FPID-based NLMF control scheme attains the features of power quality (PQ) related issues elimination such as PFC and harmonics elimination with an extraction of photovoltaic (PV) generated maximum power through the grid interfacing converter (VSC) at a unity PF. Moreover, the PV system’s feed-forward (FF) component is included in the control strategy to enrich the aggressive behavior of the system. The NLMF current controller is employed to measure the three-phase calculated currents by extracting the fundamental weight constituents of the load currents for harmonic mitigation in the presence of point of common coupling (PCC). The proposed control topology is developed on MATLAB/SIMULINK software platform under different load and grid transient conditions. A dSPACE based real-time laboratory platform is developed to justify the proposed scheme under different conditions such as steady-state, load dynamic, removed and unbalanced, grid voltage distorted, unbalanced, swell and sag conditions. The presented control scenario’s results are obtained satisfactory and the grid current’s THD are in the IEEE-519 regular limits.

在本文中，采用自适应归一化最小均四（NLMF）控制方案来生成与电网系统集成的光伏（PV）的反谐波电流，以进行谐波消除和功率因数（PF）校正（PFC）。另外，在所提出的方案中集成了基于模糊调谐的基于PID的自适应直流稳压器，以调节直流母线的参考电压。提出的基于FPID的NLMF控制方案实现了与电能质量（PQ）相关的问题消除的功能，例如PFC和谐波消除，并通过电网接口转换器（VSC）提取了光伏（PV）产生的最大功率，功率单位为PF。此外，PV系统的前馈（FF）组件包含在控制策略中，以丰富系统的主动行为。NLMF电流控制器用于在存在公共耦合点（PCC）的情况下，通过提取负载电流的基重分量来减轻谐波，从而测量三相计算出的电流。所提出的控制拓扑是在MATLAB / SIMULINK软件平台上在不同负载和电网暂态条件下开发的。开发了基于dSPACE的实时实验室平台，以证明所提出的方案在不同条件下的合理性，例如稳态，负载动态，移除和不平衡，电网电压失真，不平衡，膨胀和骤降条件。所提出的控制方案的结果令人满意，并且电网电流的THD处于IEEE-519常规限值内。